I give a lot of group lessons, especially doubles drills. I try to teach everyone a general plan of attack and the theory behind it. However, not all the team members participate in the drills. As a result, many of my students, trying to implement their plan, get frustrated with their partners who constantly make the same repetitive mistakes. I have found that when a majority of the team is on the same page with strategy, etc., the whole team benefits greatly. If you are one of the players paired with a partner that is not on the same page as you, you must compromise. Find out what he or she is trying to do and make an adjustment in your game to help. This might be difficult, but in the long run it will be in the best interest of the team.
At some later time, you might convey your theories, etc., or encourage your partner to come to your lessons. Peer pressure is a very positive way to learn. Never try to correct your partner during a match. It will only cause dissension. Wait for a better time and place. Stay positive at all times. Remember at one point in your tennis career your partner probably had to adapt to play with you. Pass it on!
Good luck on the courts!